Ppt acids and bases
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This document discusses acids and bases. It defines acids as solutions with excess hydrogen ions that have sour tastes, can conduct electricity, and corrode substances. Bases are defined as solutions with excess hydroxide ions that feel slippery, taste bitter, and conduct electricity. The document explains that acids and bases have characteristic properties, can be measured on the pH scale, and will neutralize in an acid-base reaction.
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Shake your acids, bases and saltsT Arah Kagomi
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This document discusses acids, bases, and salts. It defines acids as substances that give H+ ions in water and have a sour taste, react with metals, and have a pH less than 7. Bases are defined as substances that give OH- ions in water, usually taste bitter, feel slippery, and have a pH greater than 7. Salts are formed when acids and bases react, combining H+ and OH- ions to form water. Common examples of acids include vinegar and cola, bases include drain cleaner and baking powder, and salts include table salt and toothpaste. The document provides characteristics, examples, and a brief activity to identify household substances as acids, bases or salts.Copy_of_Acids_and_Bases.pptx
Copy_of_Acids_and_Bases.pptxHeatherClarchick
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9-12 ppt of Acids and Bases. Students will learn that the chemical difference between acids and bases is that acids produce hydrogen ions and bases accept hydrogen ions. A base is a substance that neutralises acids. When bases are added to water, they split to form hydroxide ions, written as OH-. We call a base that has been added to water an alkaline solution. Students will also learn that an acid–base reaction is a chemical reaction that occurs between an acid and a base. It can be used to determine pH via titration.
Some of the uses of Acids are:
Carbonic acid (H 2 CO 3 ) is present in the aerated cool drinks we drink. Sulphuric Acid (H 2 SO 4 ) is used in car batteries. Sulphuric Acid (H 2 SO 4 ) is also used to manufacture Paints, dyes, synthetic fibres etc. Nitric acids (HNO 3 ) is used in manufacturing of fertilizers.
Some of the uses of Bases are: It is used to neutralize the acidity in soils.
It is an ingredient in whitewash and mortar. It is a component of the Bordeaux mixture used for protecting agricultural crops from pests. It is used in the preparation of dry mixes for painting and decorating.Acid, Base and their Properties presentation
Acid, Base and their Properties presentationNeetika Naudiyal
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This ppt has information about Acid, Base and their PropertiesPpt acids and bases
- 1. WELCOME
- 2. Acids & Bases They are everywhere.. In your food In your house EVEN IN YOU!!!!!
- 3. What is an acid?  An acid is a solution that has an excess of H+ ions. It comes from the Latin word acidus that means "sharp" or "sour".  The more H + ions, the more acidic the solution.
- 4. Properties of an Acid  Tastes Sour  Conduct Electricity  Corrosive, which means they break down certain substances. Many acids can corrode fabric, skin,and paper  Some acids react strongly with metals  Turns blue litmus paper red
- 5. What is a base?  A base is a solution that has an excess of OH-ions.  Another word for base is alkali.  Bases are substances that can accept hydrogen ions
- 6. Properties of a Base  Feel Slippery  Taste Bitter  Corrosive  Can conduct electricity. (Think alkaline batteries.)  Do not react with metals.  Turns red litmus paper blue.
- 7. pH Scale  pH is a measure of how acidic or basic a solution is. • The pH scale ranges from 0 to 14.  Acidic solutions have pH values below 7  A solution with a pH of 0 is very acidic.  A solution with a pH of 7 is neutral. • Pure water has a pH of 7. • Basic solutions have pH values above 7.
- 8. Acid – Base Reactions  A reaction between an acid and a base is called neutralization. An acid-base mixture is not as acidic or basic as the individual starting solutions.